CN211833690U - Locating part and seat - Google Patents

Abstract

The utility model discloses a locating part, its be used for the detachable fixed connection that can dismantle between infant's pocket form thing and the bearing structure, including the main part member, main part member one end with fixed connection or integrated into one piece can be dismantled to infant's pocket form thing, the other end with fixed connection can be dismantled to bearing structure. The utility model also provides a seat, including bearing structure and infant's pocket form thing, bearing structure with can dismantle fixed connection through the locating part realization between the infant's pocket form thing. The utility model discloses can improve the security performance and convenient the dismantlement.

Description

Locating part and seat

Technical Field

The utility model relates to a children furniture's technical field especially relates to a locating part and thing to sit on.

Background

The child high dining chair in the prior art can limit a baby on a seat, so that adults can conveniently feed the baby; however, the dining chair can only be used for 1-3 years old of infants, and the high dining chair cannot be used along with the growth of the infants.

A high chair of the prior art comprises a seat pocket for receiving an infant, which can be placed on a frame that can be used alone as a seat for a large child or adult, but such a structure has disadvantages in that:

(1) if the seat plate of the seat pocket and the seat plate of the chair frame are combined unstably, the seat pocket can shake, and if the clamping part is not combined firmly enough, the seat pocket is easy to fall off;

(2) the seat pocket and the seat are not easy to be disassembled.

Therefore, there is a need for a dining chair stopper and seat that can improve safety and facilitate disassembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide one kind can improve the security performance and convenient high dining chair locating part and the thing to sit on of dismantling.

The utility model provides a locating part, its be used for the detachable fixed connection that can dismantle between infant's pocket form thing and the bearing structure, including the main part member, main part member one end with fixed connection or integrated into one piece can be dismantled to infant's pocket form thing, the other end with fixed connection can be dismantled to bearing structure.

Preferably, the limiting part comprises a first inserting part, and the first inserting part can be detachably and fixedly connected with the infant pocket.

Preferably, the limiting part comprises a first insertion part, and the first insertion part can be fixedly inserted into the infant pocket.

Preferably, the infant pocket includes a first insertion groove, and the first insertion part can be inserted and fixed into the first insertion groove.

Preferably, the limiting member includes a second insertion portion, and the second insertion portion can be inserted and fixed with the support structure.

Preferably, the support structure comprises a second slot, and the second slot can be used for inserting and fixing the second insertion part.

Preferably, the main rod is flat, and the cross-sectional area of the main rod gradually increases from top to bottom and is gradually and obliquely arranged outwards.

The utility model also provides a seat, including bearing structure and infant's pocket form thing, bearing structure with through any one of the aforesaid between the infant's pocket form thing locating part realize dismantling fixed connection.

Preferably, the supporting structure comprises a seat plate, and the limiting member is detachably and fixedly connected with the seat plate.

Preferably, the supporting structure comprises a supporting frame, and the limiting part is detachably and fixedly connected with the supporting frame.

Preferably, the support structure is a stool or chair.

Preferably, the support structure is a high chair.

Preferably, the infant pocket includes a leg extension space, the leg extension space enables an infant to extend both legs when the infant is put into the infant pocket, the stopper extends upward from the bottom of the support structure and divides the leg extension space into a left leg extension space and a right leg extension space.

Preferably, the limiting member comprises a second inserting portion, and the second inserting portion can be inserted and fixed with the supporting structure;

the supporting structure comprises a second slot, and the second slot can be used for the second inserting part to be inserted and fixed;

the limiting part and the supporting structure are locked and/or unlocked through a locking mechanism.

Preferably, the second inserting portion includes a limiting groove, a locking hole is formed in a side edge of the limiting groove, an elastic member is arranged in the limiting groove, a locking key is arranged at one end of the elastic member, the elastic member is in a compressed state in the limiting groove, the locking key extends out of the locking hole under the pressure of the elastic member, the second inserting groove includes a side edge, the side edge is perpendicular to the locking direction of the locking key, the inserting hole is formed in the side edge, and when the second inserting portion is inserted into the second inserting groove, the locking key is inserted into the inserting hole, so that the locking between the limiting part and the supporting structure is achieved.

Preferably, the elastic member is a spring or a leaf spring.

Preferably, infant's pocket form thing with be provided with anti-disengaging device between the bearing structure, anti-disengaging device includes bolt and jack, the jack is including macropore and aperture, the macropore with the aperture intercommunication, the bolt can pass through the macropore enters into in the jack to can translate to aperture department, and the aperture department is injectd the perpendicular to the removal of jack direction.

Preferably, the pin is a cylinder comprising sections of different diameters.

Preferably, the latch is disposed on the infant pocket and the receptacle is disposed on the support structure; or the bolt is arranged on the supporting structure and the insertion hole is arranged on the infant pocket.

Preferably, the infant pocket further comprises a hook capable of restricting movement of the infant pocket in a front-to-rear direction relative to the support structure.

Preferably, the large aperture is located at an upper portion of the small aperture.

Preferably, the catch is capable of catching on an upper edge of the support structure.

After adopting above-mentioned technical scheme, have following beneficial effect:

(1) the infant bag-shaped object and the supporting structure are convenient to detach through the limiting piece;

(2) the limiting piece can limit the baby in the seat pocket, so that the baby is prevented from falling out, and the safety is improved;

(3) the locking structure enables the combination between the limiting piece and the supporting structure to be more stable.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

fig. 1 is a perspective view of a seat in a second embodiment of the present invention;

fig. 2 is a perspective view of a position limiting member according to a first embodiment of the present invention;

fig. 3 is a side view of a position limiting member according to a first embodiment of the present invention;

fig. 4 is a perspective view of a top view of a limiting member according to a first embodiment of the present invention;

fig. 5 is a perspective view of a bottom view of a position-limiting element according to a first embodiment of the present invention;

fig. 6 is an exploded view of the limiting member and the seat portion according to the second embodiment of the present invention;

fig. 7 is a perspective view of a seat without a limiting element according to a second embodiment of the present invention;

fig. 8 is a perspective view of the seat in a second embodiment of the present invention, with the limiting member omitted;

fig. 9 is a plan view of a seat part according to a second embodiment of the present invention;

fig. 10 is an exploded view of a seat according to a second embodiment of the present invention;

fig. 11 is a back perspective view of a seat in a second embodiment of the present invention;

FIG. 12 is a front perspective view of a second embodiment of the present invention;

FIG. 13 is an exploded view of the infant's bag and tray according to the second embodiment of the present invention;

FIG. 14 is a rear perspective view of a second embodiment of the present invention;

FIG. 15 is a perspective view of the footrest section in a second embodiment of the present invention;

fig. 16 is a perspective view of the footrest section in a second embodiment of the present invention;

fig. 17 is a perspective view of a bracket according to a second embodiment of the present invention.

Reference symbol comparison table:

infant pocket 10:

auxiliary backrest part 1: a hook 11 and a bolt 12;

and (3) fence 2: the shifting piece 21 and the first slot 22 are disassembled;

a dinner plate 3;

the support structure 20:

and (4) a bracket: an upper support frame 41, a lower support frame 42, a seat rod 43, a supporting foot 44, a first cross bar 45, a second cross bar 46 and an adjusting button 411;

seat portion 5: a second slot 51, a side 52, a key hole 53;

main backrest portion 6: the plug 61, the big hole 611 and the small hole 612;

the pedal portion 7: mounting plate 71, fixing frame 72, rotating rod 73 and pedal 74;

limiting part 8: the main body rod piece 81, the first inserting part 82, the second inserting part 83, the inserting body 831, the limiting groove 833 and the lock hole 834;

the elastic member 9: a locking key 91.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

The first embodiment is as follows:

as shown in fig. 2 to 5, the stopper 8, which is used for detachable and fixed connection between the detachable infant bag 10 and the supporting structure 20, includes a main body member 81, one end of the main body member 81 is detachably and fixedly connected or integrally formed with the infant bag 10, and the other end is detachably and fixedly connected with the supporting structure 20.

Specifically, the main body bar 81 is a long flat bar structure, and the cross-sectional area gradually increases from top to bottom and gradually inclines outward.

As shown in fig. 1, after the restraining members 8 of the high chair are inserted into the infant's pocket 10 and the seat portion 5, the main member 81 is exposed, the main member 81 is used to prevent the infant from sliding off, and the left and right legs of the infant protrude from the left and right sides of the main member 81.

Preferably, the limiting member 8 includes a first insertion portion 82, and the first insertion portion 82 can be detachably and fixedly connected with the infant pocket 10.

Specifically, as shown in fig. 4, the first insertion part 82 has an oval cross-section, and the first insertion part 82 is inserted into the infant bag 10 and hidden therein.

Optionally, the first insertion portion 82 can be inserted and fixed with the infant pocket 10.

Preferably, the limiting member 8 includes a second inserting portion 83, and the second inserting portion 83 can be inserted and fixed with the supporting structure 20.

Further, as shown in fig. 3, the cross-sectional areas of the first and second insertion parts 82 and 83 are each smaller than the maximum cross-sectional area of the main body rod 81.

A step surface is formed between the first insertion part 82 and the upper end of the main body rod 81, and the step surface can limit the insertion depth of the first insertion part 82 and the infant pocket 10;

similarly, a step surface is formed between the second plug portion 83 and the lower end of the main body rod 81, and the step surface can limit the insertion depth of the first plug portion 82 and the seat portion 5.

In this embodiment, the infant pocket 10 and the seat portion 5 are inserted through the positioning member 8 of the high chair, so that the connection stability between the infant pocket 10 and the seat portion 5 can be increased, and the positioning member 8 can also stop the infant from sliding out of the high chair.

Example two:

as shown in fig. 1 and fig. 6 to 17, the seat includes a supporting structure 20 and a baby pocket 10, and the supporting structure 20 and the baby pocket 10 are detachably and fixedly connected by a stopper 8.

Preferably, the supporting structure 20 comprises a seat plate, and the limiting member 8 is detachably and fixedly connected with the seat plate.

Preferably, the supporting structure 20 includes a supporting frame, and the position-limiting member is detachably and fixedly connected to the supporting frame.

Specifically, the seat further includes a support 4, and a seat portion 5 and a main backrest portion 6 mounted on the support 4.

In this embodiment, the seat 5 is a seat plate, and the support 4 is a support frame.

Preferably, the infant pocket 10 includes a first insertion groove 22, and the first insertion groove 22 is capable of inserting and fixing the first insertion portion 82.

Preferably, the supporting structure 20 includes a second insertion slot 51, and the second insertion slot 51 can be inserted and fixed by the second insertion part 83.

Further, as shown in fig. 12 to 14, the infant's bag 10 includes an auxiliary backrest portion 1 and a rail 2, the rail 2 is installed in front of the auxiliary backrest portion 1 to form a cylindrical space and a receiving portion capable of receiving an infant with the seat plate 5, the auxiliary backrest portion 1 is integrally formed with or detachably connected to the main backrest portion 6, and a leg protruding space is left between the seat portion 5 and the rail 2.

As shown in fig. 8, the rail 2 is provided with a first slot 22 corresponding to the first insertion part 82, and the seat part 5 is provided with a second slot 51 corresponding to the second insertion part 83;

specifically, the auxiliary backrest portion 1 has a flat plate structure, and the auxiliary backrest portion 1 is used for supporting the back of an elderly child. Since the child is not easily seated straight, the height of the auxiliary backrest portion 1 is high, and the back of the child can be supported more stably.

The rail 2 is a U-shaped frame structure, two ends of which are connected with the left side and the right side of the auxiliary backrest part 1, and the rail 2 and the auxiliary backrest part 1 enclose a closed ring shape, so that a child can be protected in the child pocket-shaped object 10, and the child is prevented from falling off the seat.

Alternatively, the enclosure 2 may be semi-enclosed or openable to facilitate entry of the infant into the infant pocket 10.

The infant pocket 10 in this embodiment is adapted to be mounted to a support structure 20 (see fig. 1) for use with the support structure 20. The infant pocket 10 is more suitable for an older infant in size and can prevent the infant from falling. The supporting structure 20 can be used alone after the infant bag 10 is disassembled, and is suitable for older children, thereby providing a more spacious space.

Further, the back surface of the auxiliary backrest portion 1 is provided with a detachable coupling portion for mounting the infant bag 10 to the support structure 20.

The pen 2 is not conveniently connected directly to the support structure 20 because of the space between the pen 2 and the support structure 20 that is required to allow the legs of the child to extend. Through the auxiliary backrest part 1 and the support structure 20, the assembly and disassembly are convenient, and the use is not influenced.

As shown in fig. 1 and 10, the auxiliary backrest portion 1 may be directly connected to the main backrest portion 6 of the support structure 20, or may be directly connected to the support frame 4.

Further, as shown in fig. 13, a dinner plate 3 is detachably connected to the front of the enclosure 2.

Specifically, the dinner plate 3 extends out of two connecting ends and is respectively connected with the left side and the right side of the fence 2, and the dinner plate 3 is detachably connected with the fence.

Further, as shown in fig. 13-14, the left and right sides of the enclosure 2 are provided with detaching dials 21, and after the detaching dials 21 are pulled, the dinner plate 3 is separated from the enclosure 2.

Alternatively, the tray 3 can also be removably attached to the left and right sides of the auxiliary back 1.

In this embodiment, the auxiliary backrest part 1 and the rail 2 are integrally formed, and the dish 3 is detachably connected to the rail 2. The auxiliary backrest part 1 and the enclosure 2 can be used alone or the dinner plate 3, the auxiliary backrest part 1 and the enclosure 2 can be used in combination according to the needs of users.

Specifically, the seat portion 5 has a seat plate structure, and the seat portion 5 is used for supporting the buttocks of the child in both the child use mode and the toddler use mode.

The main backrest part 6 is a back plate with a flat plate structure, in the infant use mode, the back surface of the infant pocket 10 is connected with the front surface of the main backrest part 6, and the main backrest part 6 plays a role of installing the infant pocket 10; in the child use mode, the infant pocket 10 is detached and the main backrest portion 6 functions to support the back of the child.

Further, as shown in fig. 10 to 11 and 14, a retaining device is arranged between the infant bag 10 and the supporting structure 20, the retaining device comprises a plug 12 and a socket 61, the socket 61 comprises a large hole 611 and a small hole 612, the large hole 611 is communicated with the small hole 612, the plug 12 can enter the socket 61 through the large hole 611 and can translate to the small hole 612, and the movement perpendicular to the direction of the socket 61 is limited at the small hole 612.

When the infant seat is installed, the plug 12 and the insertion hole 61 are matched to complete limitation, and then the infant pocket 10 and the supporting structure 20 are fixed, so that the anti-falling device can play a certain limiting role when an infant shakes.

Preferably, the plug 12 is a cylinder comprising sections of different diameters. For example, the shape may be a pin-like shape, or a screw-like shape as long as there are portions having different diameters, and the cross-sectional shape may be circular, square, or other polygonal shapes.

Preferably, the latch 12 is provided on the infant bag 10 and the receptacle 61 is provided on the support structure 20; alternatively, the latch 12 is provided on the support structure 20 and the receptacle 61 is provided on the infant pocket 10.

Preferably, the plug 12 comprises a head with a larger diameter and a neck with a smaller diameter, the diameter of the large hole 611 is larger than that of the head of the plug, the diameter of the small hole 612 is larger than that of the neck and smaller than that of the head, the minimum distance between the hole diameters of the connection part of the large hole 611 and the small hole 612 is larger than that of the neck, the head can move to the direction perpendicular to the insertion hole 61 to penetrate through the insertion hole 61, and then the head can translate to enable the neck to enter the small hole 612 to form a limited matching structure.

Preferably, the large hole 611 is located at the upper portion of the small hole 612.

Alternatively, the large hole 611 may be located below the small hole 612.

Preferably, the infant pocket 10 further comprises a hook 11, the hook 11 being capable of limiting the movement of the infant pocket 10 in the front-rear direction with respect to the support structure 20.

Preferably, the catch 11 is capable of catching on the upper edge of the support structure 20.

Specifically, the height of the main backrest portion 6 is smaller than the height of the auxiliary backrest portion 1, so that the hooks 11 can be engaged with the upper edge of the main backrest portion 6. Since the child is basically well developed, the main backrest portion 6 only needs to support the waist of the child, and thus the height of the main backrest portion 6 can be low.

Two sets of the insertion holes 61 and the insertion pins 12 are arranged at the lower side of the backrest part. When the auxiliary backrest part 1 and the main backrest part 6 are installed, the bolt 12 is firstly inserted into the insertion hole 61, the bolt 12 slides into the lowest end of the insertion hole 61, and then the clamping hook 11 is clamped with the upper edge of the main backrest part 6, so that the auxiliary backrest part 1 and the main backrest part 6 are installed more stably through three-point fixation.

Further, as shown in fig. 10 to 11 and fig. 15 to 16, a footrest section 7 is installed below the seat section 5, and the footrest section 7 can be folded and rotated to be received in the bottom surface of the seat section 5.

When a child or a child with a short height uses the foldable bicycle, the pedal part 7 can be opened forwards and downwards, so that the use comfort is improved. When the child is high and the feet can touch the ground, the pedal part 7 can be turned backwards and folded into the ground of the seat part 5.

Further, as shown in fig. 15 to 16, the footrest section 7 includes a mounting plate 71, a fixing bracket 72, a rotating rod 73, and a footrest plate 74, wherein a top surface of the mounting plate 71 is fixedly connected to a bottom surface of the seat section 5, the fixing bracket 72 is fixedly connected to the bottom surface of the mounting plate 71, a top end of the rotating rod 73 is rotatably connected to the fixing bracket 72, and the footrest plate 74 is connected to a bottom end of the rotating rod 73.

Specifically, the mounting plate 71 is a flat plate for fixedly connecting to the bottom surface of the seat portion 5; while the mounting plate 71 is also connected to the seat bar 43 of the bracket 4. The seat lever 43 is used to support the seat portion 5 and also functions to connect the foot board 7.

The lower surface of the mounting plate 71 is fixedly connected with the fixing frame 72, and the fixing frame 72 is fixed.

The rotating rod 73 is rotatably connected with the fixed frame 72, the rotating rod 73 is fixedly connected with the pedal plate 74, and the pedal plate 74 is driven to move together when the rotating rod 73 rotates.

The footrest 74 is a platform that provides support for the child's feet.

Further, as shown in fig. 11 and 17, the stand 4 includes an upper support frame 41, a lower support frame 42, a seat bar 43, support feet 44, a first cross bar 45, and a second cross bar 46;

the upper supporting frame 41 is U-shaped, the seat rod 43 is transversely connected to the upper supporting frame 41 and used for installing the seat part 5, and the main backrest part 6 is vertically installed on the upper supporting frame 41;

the two ends of the upper support frame 41 are inserted into the upper ends of the two lower support frames 42, and the lower ends of the two lower support frames 42 are connected with supporting legs 44;

the two support feet 44 are connected between a first crossbar 45 and a second crossbar 46 in the transverse direction.

Specifically, the upper support frame 41 is an inverted U-shape, the upper portion is used for mounting the main backrest portion 6, a seat rod 43 is connected between the middle portions, the seat rod 43 is used for mounting the seat portion 5, and the lower end is inserted into the lower support frame 42.

The lower support frame 42 is two vertical rods, which are respectively connected with the lower end of the upper support frame 41. The maximum depth of insertion of the upper support 41 into the lower support 42 is determined by the distance of the seat post 43 from the lower end of the upper support 41.

The lower end of the lower support frame 42 is connected with a support leg 44, the support leg 44 is Y-shaped and is used for contacting with the ground to support the weight of the whole seat and the child, and the support leg 44 has a larger contact area with the ground, so that the support can be stabilized and the seat can be prevented from toppling over. The two supporting feet 44 are connected through a first cross bar 45 and a second cross bar 46, and play a role of transverse support.

Further, as shown in fig. 11, the upper support frame 41 is provided with an adjusting button 411 on each of the left and right sides thereof, and the upper support frame 41 can be adjusted in height relative to the lower support frame 42 when the adjusting button 411 is pressed.

When the left and right adjusting buttons 411 are pressed, the upper support 41 can slide up and down relative to the lower support 42, so that the utility model is suitable for children with different heights and the height between the children and the adjacent table top.

When the upper support 41 is lowered to the minimum height, the infant bag 10 can be removed and the entire height of the seat, which can be used by an adult as well, corresponds to the normal use height of the adult.

The seat in this embodiment can have a plurality of usage modes:

the infant uses the mode: the infant bag-shaped object 10 is arranged on the main backrest part 6, the height of the upper support frame 41 is increased, the pedal 74 is turned downwards, and the dinner plate 3 can be arranged on the infant bag-shaped object 10;

the use mode of the children is as follows: removing the infant pocket 10, lowering the height of a section of the upper support frame 41, and folding the pedal 74;

adult usage patterns: the infant's pocket 10 is removed, the height of the upper support 41 is minimized, and the footrest 74 is folded.

The usage mode of the seat in this embodiment is not limited to the above, and can be adjusted freely according to the needs of the user. The seat in the embodiment is mainly suitable for children of different ages, and the service life of the seat is prolonged.

In this embodiment, the support structure 20 is a child's high chair.

Alternatively, the support structure 20 may be a stool or chair, etc., and may be used in other child restraint-requiring devices such as a child restraint in a mother-child compartment that provides a separate seating structure for the child.

Preferably, the baby pocket 10 includes a leg protruding space for allowing the baby to protrude his or her legs from the baby pocket 10 when the baby is inserted into the baby pocket, and the stopper 8 extends upward from the bottom of the support structure 20 and divides the leg protruding space into a left leg protruding space and a right leg protruding space.

Preferably, the locking and/or unlocking between the limiting member 8 and the support structure 20 is achieved by a locking mechanism.

Specifically, as shown in fig. 5 to 6, the second inserting portion 83 includes an inserting body 831, a limiting groove 833 is formed on the inserting body 831, a locking hole 834 is formed on a side edge of the limiting groove 833, an elastic member 9 is disposed in the limiting groove 833, a locking key 91 is disposed at one end of the elastic member 9, the elastic member 9 is compressed in the limiting groove 833, and the locking key 91 extends out of the locking hole 834 under the pressure of the elastic member 9.

As shown in fig. 6 and 9, the second slot 51 includes a side 52, the side 52 is perpendicular to the locking direction of the locking key 91, the side 52 is provided with a key hole 53, and when the second inserting portion 83 is inserted into the second slot 51, the locking key 91 is inserted into the key hole 53, so as to lock the limiting member 8 and the supporting structure 20.

Preferably, the elastic member 9 is a spring or a leaf spring.

Optionally, one side of the plug body 831, on which the locking hole 834 is formed, is a contact plane 832, and when the second plug portion 83 is inserted into the second slot 51, the contact plane 832 contacts the side 52.

The embodiment has the following advantages:

(1) the infant bag-shaped object and the supporting structure are convenient to detach through the limiting piece;

(2) the limiting piece can limit the baby in the seat pocket, so that the baby is prevented from falling out, and the safety is improved;

(3) the locking structure enables the combination between the limiting piece and the supporting structure to be more stable.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims (22)

1. The utility model provides a locating part, its be used for the detachable fixed connection that dismantles between infant's pocket form thing and the bearing structure, its characterized in that, includes the main part member, main part member one end with fixed connection or integrated into one piece can be dismantled to infant's pocket form thing, the other end with fixed connection can be dismantled to bearing structure.

2. The retainer of claim 1, wherein the retainer comprises a first mating portion that is detachably and fixedly connectable with the infant pocket.

3. The retainer of claim 1, wherein the retainer comprises a first insertion portion that is capable of being inserted into and secured with a baby pocket.

4. The stop of claim 3, wherein the baby pocket comprises a first slot, and the first slot is capable of allowing the first insertion portion to be inserted and fixed.

5. A limiter according to any one of claims 1 to 4 wherein the limiter includes a second socket portion which is able to be fixed to the support structure.

6. The retaining member of claim 5 wherein the support structure includes a second slot, and the second slot is capable of allowing the second insertion portion to be inserted and fixed.

7. The limiter of claim 1, wherein the main body rod is flat and has a cross-sectional area gradually increasing from top to bottom and gradually inclining outwards.

8. A seat, comprising a support structure and a baby pocket, wherein the support structure and the baby pocket are detachably and fixedly connected through a limiting member according to any one of claims 1 to 7.

9. The seating apparatus of claim 8, wherein the support structure comprises a seat plate, and the retainer is detachably and fixedly connected to the seat plate.

10. The seating furniture as claimed in claim 8, wherein the supporting structure comprises a supporting frame, and the position-limiting member is detachably and fixedly connected with the supporting frame.

11. A seat according to claim 8, wherein the support structure is a stool or chair.

12. A seat according to claim 8, wherein the support structure is a high chair.

13. The harness of claim 8 wherein the infant pocket includes a leg extension space that enables an infant to extend both legs when placed in the infant pocket, the stop extending upwardly from the support structure bottom and dividing the leg extension space into a left leg extension space and a right leg extension space.

14. The seat of claim 8, wherein the retaining member comprises a second plug portion capable of being fixedly plugged with the support structure;

the supporting structure comprises a second slot, and the second slot can be used for the second inserting part to be inserted and fixed;

the limiting part and the supporting structure are locked and/or unlocked through a locking mechanism.

15. The seat according to claim 14, wherein the second inserting portion comprises a limiting groove, a locking hole is disposed on a side of the limiting groove, an elastic member is disposed in the limiting groove, a locking key is disposed at one end of the elastic member, the elastic member is compressed in the limiting groove, the locking key extends out of the locking hole under the pressure of the elastic member, the second inserting groove comprises a side edge, the side edge is perpendicular to the locking direction of the locking key, an inserting hole is disposed on the side edge, and when the second inserting portion is inserted into the second inserting groove, the locking key is inserted into the inserting hole, so that the locking between the limiting member and the supporting structure is achieved.

16. Seat according to claim 15, characterized in that said elastic member is a spring or a leaf spring.

17. The harness of claim 8 wherein an anti-slip means is provided between the infant pocket and the support structure, the anti-slip means comprising a pin and a socket, the socket comprising a large aperture and a small aperture, the large aperture communicating with the small aperture, the pin being able to enter the socket through the large aperture and to translate to the small aperture and to define a movement at the small aperture perpendicular to the direction of the socket.

18. A seat according to claim 17, wherein the spigot is a cylinder comprising different diameter portions.

19. The harness of claim 17 wherein the latch is disposed on the infant pocket and the receptacle is disposed on the support structure; or the bolt is arranged on the supporting structure and the insertion hole is arranged on the infant pocket.

20. The harness of claim 8 wherein the infant pocket further comprises a catch capable of restricting fore and aft movement of the infant pocket relative to the support structure.

21. The seat according to claim 17, characterized in that said large hole is located at the upper part of said small hole.

22. Seating furniture according to claim 20, characterized in that the catch can catch on the upper edge of the support structure.

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